def __init__(self, message, offset):
data = DNSQuestion.decode_domain_name(message, offset)
self.primary_name_server = data[0]
offset = data[1]
data = DNSQuestion.decode_domain_name(message, offset)
self.authority_mailbox = data[0]
offset = data[1]
self.serial_number = str(
struct.unpack('!I', message[offset:offset + 4])[0])
offset += 4
self.refresh_interval = str(
struct.unpack('!I', message[offset:offset + 4])[0])
offset += 4
self.retry_interval = struct.unpack('!I',
message[offset:offset + 4])[0]
offset += 4
self.expire_limit = struct.unpack('!I', message[offset:offset + 4])[0]
offset += 4
self.minimum_TTL = struct.unpack('!I', message[offset:offset + 4])[0]
def decode_info(self, message, offset):
name_offset = struct.unpack_from('!H', message, offset)[0] & 0x1fff
self.host_name = DNSQuestion.decode_domain_name(message,
name_offset)[0]
offset += 2
self.type = struct.unpack('!H', message[offset:offset + 2])[0]
offset += 2
self.request_class = struct.unpack('!H', message[offset:offset + 2])[0]
offset += 2
self.ttl = struct.unpack('!I', message[offset:offset + 4])[0]
offset += 4
self.data_length = struct.unpack('!H', message[offset:offset + 2])[0]
offset += 2
for i in range(self.data_length):
self.address += str(
struct.unpack_from('!B', message, offset + i)[0]) + '.'
self.address = self.address[:-1]
self.request = Request(self.data_length, self.type, message, offset)
return offset + self.data_length
def __init__(self, message, offset):
self.name_server = DNSQuestion.decode_domain_name(message, offset)[0]
def __init__(self, message, offset):
self.priority = struct.unpack('!H', message[offset:offset + 2])[0]
offset += 2
self.mail_exchanger = DNSQuestion.decode_domain_name(
message, offset + 2)[0]
def __init__(self, message, offset):
self.mailbox = DNSQuestion.decode_domain_name(message, offset)[0]
def __init__(self, message, offset):
self.name = DNSQuestion.decode_domain_name(message, offset)[0]
print(' PTR: {0}'.format(self.name))
exit(0)